57363818509 has 4 divisors (see below), whose sum is σ = 58149624316. Its totient is φ = 56578012704.

The previous prime is 57363818507. The next prime is 57363818537. The reversal of 57363818509 is 90581836375.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47413756009 + 9950062500 = 217747^2 + 99750^2 .

It is a cyclic number.

It is not a de Polignac number, because 57363818509 - 2¹ = 57363818507 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57363818509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57363818507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392902794 + ... + 392902939.

It is an arithmetic number, because the mean of its divisors is an integer number (14537406079).

Almost surely, 2^57363818509 is an apocalyptic number.

It is an amenable number.

57363818509 is a deficient number, since it is larger than the sum of its proper divisors (785805807).

57363818509 is an equidigital number, since it uses as much as digits as its factorization.

57363818509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785805806.

The product of its (nonzero) digits is 5443200, while the sum is 55.

The spelling of 57363818509 in words is "fifty-seven billion, three hundred sixty-three million, eight hundred eighteen thousand, five hundred nine".